Home / 8,425.20-11,625.24-7,244.40

Finding the Fourth Proportional to 8,425.20, 11,625.24 and 7,244.40

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Solution

The fourth proportional to 8,425.20, 11,625.24 and 7,244.40 is: 9,995.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,425.20 : 11,625.24 = 7,244.40 : x
  2. Step 2: Convert to fraction form
    8,425.20/11,625.24 = 7,244.40/x
  3. Step 3: Cross multiply
    8,425.20x = 11,625.24 × 7,244.40
  4. Step 4: Simplify right side
    8,425.20x = 84,217,888.66
  5. Step 5: Solve for x
    x = 84,217,888.66/8,425.20
  6. Step 6: Final answer
    x = 9,995.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.